Dimensions and refrigerant connections: standard design

Versions for 4 passes and 2 passes are only listed separately, if the dimensions are different.

Detailed dimensions of the reversing covers see Cover dimensions and heat transfer fluid connections.

In the case of a pressure equipment that has been subjected to an approval procedure for a marine application, the fastening support of the lower fixing brackets is designed more solidly. This makes it up to 9 mm higher. This applies to dimensions C, E1, L and S. The foot spacing 740 mm (dimension H) is also reduced to 680 mm. For the models concerned, dimension I is 30 mm larger as a result.

K033N(P), K033H(P), K073H(P) and K123H(P)

Model	A	A1	B	B1	C	C1	D	E	E1	F	G	H	I
K033N(P)	606	517	152	130	184	–	108	50	154	50	110	400	58
K033H(P)	606	517	152	130	184	–	108	50	154	50	110	400	58
K073H(P)	606	517	152	130	184	–	108	50	154	50	110	400	58
K123H(P)	856	767	152	130	172	–	108	60	154	60	110	400	188

Model	L	R	R1	S	T	U	U1	U2	V	W	X	Y	Z
K033N(P)	–	60	45	62	–	–	–	–	212	250	47	6	87
K033H(P)	125	60	45	62	132	236	–	–	212	250	47	6	87
K073H(P)	125	60	45	62	132	236	–	–	212	250	47	6	87
K123H(P)	125	60	50	62	262	295	–	–	275	320	47	6	87

No additional refrigerant outlet available.
Model	Refrigerant connections, positions 1 and 2
	bushing				thread/flange
	inlet Ø		outlet Ø		inlet	outlet
	mm	inch	mm	inch	inlet	outlet
K033N(P)	12	1/2	10	3/8	1-14 UNS	3/4-16 UNF
K033H(P)	12	1/2	10	3/8	1-14 UNS	3/4-16 UNF
K073H(P)	12	1/2	10	3/8	1-14 UNS	3/4-16 UNF
K123H(P)	16	5/8	12	1/2	1-14 UNS	1-14 UNS

K203H(P), K283H(P), K373H(P), K573H(P), K813H(P) and K1053H(P)

Model	A	A1	B	B1	C	C1	D	E	E1	F	G	H	I
K203H(P)	860	767	197	130	234	–	159	60	213	60	110	400	184
K283H(P)	860	767	197	130	242	–	159	60	223	60	110	400	184
K373H(P)	1110	1017	197	130	248	–	159	60	223	60	110	740	138
K573H(P)	1176	1070	245	200	308	–	216	60	279	60	180	740	165
K813H(P)	1176	1070	245	200	308	–	216	60	279	60	180	740	165
K1053H(P)	1634	1528	245	200	324	–	216	70	279	70	180	900	314

Model	L	R	R1	S	T	U	U1	U2	V	W	X	Y	Z
K203H(P)	190	60	50	95	218	335	–	–	275	320	52	8	113
K283H(P)	190	60	50	95	218	335	–	–	275	320	52	8	113
K373H(P)	190	60	50	95	344	335	–	–	275	320	52	8	113
K573H(P)	236	60	50	118	300	381	–	–	305	360	53	8	133
K813H(P)	236	60	50	118	300	381	–	–	305	360	53	8	133
K1053H(P)	236	130	70	118	300	381	–	–	305	360	53	8	133

Special design only for the model K283H(P): Additional refrigerant outlet below on the refrigerant inlet side:
Position 2a, see dimensions of the corresponding seawater resistant design.
The connection is delivered with sealing nut or blind flange, if desired also with a valve.
Model	Refrigerant connections, positions 1 and 2
	bushing				thread/flange
	inlet Ø		outlet Ø		inlet	outlet
	mm	inch	mm	inch	inlet	outlet
K203H(P)	16	5/8	16	5/8	1-1/4-12 UNF	1-14 UNS
K283H(P)	22	7/8	22	7/8	1 1/4-12 UNF	1 1/4-12 UNF
K373H(P)	28	1 1/8	22	7/8	1 3/4-12 UN	1 1/4-12 UNF
K573H(P)	35	1 3/8	28	1 1/8	1 3/4-12 UN	1 3/4-12 UN
K813H(P)	35	1 3/8	28	1 1/8	1 3/4-12 UN	1 3/4-12 UN
K1053H(P)	42	1 5/8	35	1 3/8	2 1/4-12 UN	1 3/4-12 UN

K1353T(P), K1973T(P), K2923T(P), K3803T(P), K4803T(P), K6703N, K6703T, K8503N and K8503T

Model	A	A1	B	B1	C	C1	D	E	E1	F	G	H	I
K1353T(P)	1634	1528	245	200	394	324	216	70	27	70	180	900	314
K1973T(P)-4	1661	1527	333	280	541	401	298	102	95	102	250	900	314
K1973T(P)-2	1694	1527	333	280	541	401	298	102	95	102	250	900	314
K2923T(P)-4	1661	1527	333	280	561	401	298	102	88	102	250	900	322
K2923T(P)-2	1694	1527	333	280	561	401	298	102	88	102	250	900	322
K3803T(P)-4	1739	1519	391	280	684	484	368	110	112	110	250	900	310
K3803T(P)-2	1749	1519	391	280	684	484	368	110	112	110	250	900	310
K4803T(P)-4	1739	1519	391	280	684	484	368	110	112	110	250	900	310
K4803T(P)-2	1749	1519	391	280	684	484	368	110	112	110	250	900	310
K6703N-4	1816	1528	344	335	843	642	500	125	111	125	305	900	314
K6703N-2	1813	1528	344	335	843	642	500	125	111	125	305	900	314
K6703T-4	1816	1528	344	335	843	642	500	125	111	125	305	900	314
K6703T-2	1813	1528	344	335	843	642	500	125	111	125	305	900	314
K8503N-4	1816	1528	344	335	843	642	500	125	111	125	305	900	314
K8503N-2	1813	1528	344	335	843	642	500	125	111	125	305	900	314
K8503T-4	1816	1528	344	335	843	642	500	125	111	125	305	900	314
K8503T-2	1813	1528	344	335	843	642	500	125	111	125	305	900	314

Model	L	R	R1	S	T	U	U1	U2	V	W	X	Y	Z
K1353T(P)	236	130	70	118	117	381	381	381	305	360	53	70	133
K1973T(P)-4	337	80	70	169	108	381	381	381	305	360	67	140	178
K1973T(P)-2	337	80	70	169	108	381	381	381	305	360	100	140	178
K2923T(P)-4	337	80	80	169	108	381	381	381	360	420	67	160	178
K2923T(P)-2	337	80	80	169	108	381	381	381	360	420	100	160	178
K3803T(P)-4	413	80	80	205	106	381	381	381	360	420	130	200	201
K3803T(P)-2	413	80	80	205	106	381	381	381	360	420	140	200	201
K4803T(P)-4	413	80	80	205	106	381	381	381	360	420	130	200	201
K4803T(P)-2	413	80	80	205	106	381	381	381	360	420	140	200	201
K6703N-4	545	80	80	374	–	–	–	–	360	420	185	200	244
K6703N-2	545	80	80	374	–	–	–	–	360	420	182	200	244
K6703T-4	545	80	80	374	111	381	381	381	360	420	185	200	244
K6703T-2	545	80	80	374	111	381	381	381	360	420	182	200	244
K8503N-4	545	80	80	374	–	–	–	–	360	420	185	200	244
K8503N-2	545	80	80	374	–	–	–	–	360	420	182	200	244
K8503T-4	545	80	80	374	111	381	381	381	360	420	185	200	244
K8503T-2	545	80	80	374	111	381	381	381	360	420	182	200	244

Additional refrigerant outlet below on the refrigerant inlet side: special design for the models K1053H(P) to K4803T(P)
Position 2a see dimensions of the corresponding seawater resistant design.
K1053H(P) and K1353T(P): 1 3/4-12 UNF, K1973T(P): 2 1/4-12 UNF, K2923T(P): DN50, K3803T(P) and K4803T(P): DN80
The connection is delivered with sealing nut or blind flange, if desired also with a valve.
Model	Refrigerant connections, positions 1 and 2
	bushing				thread/flange
	inlet Ø		outlet Ø		inlet	outlet
	mm	inch	mm	inch	inlet	outlet
K1353T(P)	42	1 5/8	35	1 3/8	2 1/4-12 UN	1 3/4-12 UN
K1973T(P)	54	2 1/8	42	1 5/8	DN50	2 1/4-12 UN
K2923T(P)	54	2 1/8	54	2 1/8	DN50	DN50
K3803T(P)	76	3 1/8	76	3 1/8	DN80	DN80
K4803T(P)	76	3 1/8	76	3 1/8	DN80	DN80
K6703N	76	3 1/8	76	3 1/8	DN100	DN100
K6703T	76	3 1/8	76	3 1/8	DN100	DN100
K8503N	76	3 1/8	76	3 1/8	DN100	DN100
K8503T	76	3 1/8	76	3 1/8	DN100	DN100